Means for operating the slides of grain-hoppers



(No Model.)

J. DABLE.

MEANS FOR OPERATING THE SLIDES 0F GRAIN HOPPBRS. No. 388,641. PatentAug. 28, 1888.

luiinweesf O/QUMA 0/ 9M; MW 7 UNITED STATES PATENT OFFICE.

JOHN DABLE, OF CHICAGO, ILLINOIS.

MEANS FOR OPERATING THE SLIDES OF GRAlN-HOPPERS.

SPECIFICATION forming part of Letters Patent No. 388,641, dated August28, 1888.

Application filed May 25, 1888. Serial No. 275,068.

To all whom it may concern:

Be it known that 1, JOHN DABLE, of Ohicago, county of Cook, and State ofIllinois, have invented an Improvement in the Means for Operating theSlides of Grain-Hoppers, of which the following is a specification.

My said invention will be fully described hereinafter with reference tothe accompanying drawings, in which Figure 1 represents a longitudinalvertical section of an apparatus embodying my improvement; and Fig.2,adetail view ofthelower side of a portion of the square frame B and thetwo curved bars I and l, the inner ends of which are fastened on theunder side of the square frame B, while their outer ends are bolted toeach other and are pivoted to and sustain the upright lever E.

My said improvement herein described and claimed with a grain-hopper, O,a slide, 0, a spout, C, a square frame, B, for the hopper, and a main orfoundation frame, A, and a frame of metal rods, 0 and d, and ascalebeam, 7, connected with the last-mentioned frame, are exactly thesame with those shown and described in Letters Patent of the UnitedStates issued to me hearing date the 31st day of January, A. I). 1888,No. 377,292, for a scale for weighing grain, in which the operativeparts consisted mainly of a handwheel, vertical lever, a rack andpinion, and a support for the same, by means of which the slide 0, underthe bottom of the hopper, was operated, whereas the special devicesherein described and claimed consist of the upright lever F, which ispassed down through a vertical slot through the floor of the buildingand is pivoted between the outer ends of the curved bars I and l, whichare spread asunder at their inner ends, which inner ends are themselvesfastened to the frame B, as shown in the drawings. These bars near theirouter ends are curved upward, in order that their connection with theupright lever E may be pivoted to them at a point nearly midway of itslength, and that they may form a fulcrum for the lever.

The lower end of the lever E is pivoted to the outer end of a horizontalrod, D, the inner end of which is securely fastened to the (No model.)

slide 0, which slide is passed through an aperture in the lower end ofhopper C, so that when the upper end of the lever is forced back andforth on its fulcrum-pin i the slide 0 will be driven in and out and thelower end of the hopper opened to and closed against the grain put intothe hopper to be weighed. These devices for operating the slide aresecurely attached to the hopper O by two rods, k, the upper ends ofwhich are bolted to the hopper, while their lower ends are likewisefastened to the curved rods I and I, respectively.

By reason of the construction and arrangement of the lever E and itsspecified connec tions with the square frame B, the hopper O, and theslide 0, and of the hopper being seated in the square frame B, theseparts will always have true and accurate action in reference to eachother, the whole of them being disconnected in their action from thefoundationframe A and the frame by which the latter is connected withthe scale-beam \V.

The spreading asunder of the inner ends of the curved bars I and I andtheir attachments to the hopper secure the lever against any sidewiseyielding, and the position of the upper end of the lever will alwaysindicate to the eye of the operator whether the lower end of the hopperbe opened or closed without his taking the time and trouble of goingbelow to see the slide 0, and quick and accurate Weighing of the grainwill be the result.

\Vhat I claim as my invention, and desire to secure by Letters Patent,is-

The combination of the hopper (l, the slide 0, the bar D, attached atone end to the slide 0 and pivoted at the other to the lower end of thelever E, the said lever itself pivoted between the outer ends of thecurved bars I I, the said curved bars themselves having their inner endsfastened to the square frame B, and the vertical bars k, connecting themiddle portions of said curved bars with the hopper 0, adapted tooperate the slide a, substantially as described.

JOHN DABLE.

\Vitnesses:

A. J. ELVIG, A. M. STOUT.

